If you are wanting to kill yourself because of how you physically feel on top of your mental state, like that horrendous knot in your stomach that high anxiety can give you, sweating and panic attacks etc, then get to a Dr and ask for sertraline (zoloft), it quelled the negative thoughts and eliminated the physical symptoms which feed back into the mental. It's absolute fucking hell but you should consider this.
Mate all that aside, please reach out to family or friends or call a help line, you need to hear another humans voice but preferably get together with some people. Don't kill yourself man. It sounds weird to me to say that to someone like how dare I! His body his life his choice. Strange little argument going on in my head. I don't want you to die man but you gotta choose what's better for you.
Could you just pick up and leave where you live and just hit the road? Could be the time to do that, just go with the flow and see what happens. The path less travelled might be exactly what you need. Take care man